Norcal Foundation Support
Davis, CA· about 184.4 mi from the city reference point
- Foundation repair
CSLB License Master List: 1037019 · source status “CLEAR” · checked October 16, 2026
Humboldt County, California
Foundation Repair Contractors near Rio Dell, CA
No listed business serves Rio Dell, California yet. The nearest listings in California are shown below with their distance. 2 of them have a checked CSLB record and dated service evidence; the others are listings from Overture Maps open data, each labelled with what is and isn't confirmed.
Nearest listings to Rio Dell
These businesses are outside our estimated service area for Rio Dell. Ask whether they travel to your address.
Bay Area Underpinning
Fairfield, CA· about 190.2 mi from the city reference point
- Foundation repair
- Listing from Overture Maps
No state credential record attached. Check local licensing requirements.
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
Eco Foundation Systems
Sacramento, CA· about 194 mi from the city reference point
- Listing from Overture Maps
- Services not verified
CSLB License Master List: 668399 · source status “CLEAR” · checked October 16, 2026
Place data: Overture Maps Foundation (BrightQuery), CDLA-Permissive-2.0
Stronghold Foundation Repair
Sacramento, CA· about 194 mi from the city reference point
- Listing from Overture Maps
- Services not verified
CSLB License Master List: 1135560 · source status “CLEAR” · checked October 16, 2026
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
T J Nelsen Marine Service Co
Sausalito, CA· about 201.9 mi from the city reference point
- Foundation repair
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
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Nearby cities
All of Humboldt County · All California counties
Checking a California contractor's license
California contractors are licensed by the CSLB. A license record shows its classifications, status and bond and workers' compensation filings. Check which classification covers your specific foundation or waterproofing scope.
Look up the business in the CSLB public search before you sign. A credential shows legal standing at most. It does not show that a business does foundation or waterproofing work, so we show separate, dated service evidence where we have it. Neither is a rating of workmanship. How we verify listings.